大方廣佛華嚴經隨疏演義鈔 68.62

68.62

疏「次喻中輪王喻七地，隨分捨功用道」者，略舉其要，此是行淨義，揀異梵王報得淨耳。然準合中，二喻各有五節，至下當知。然云梵王遊千界者，即千四天下，準《俱舍論》，二禪量等小千，三禪等中千，四禪等大千。《婆沙》有義：初禪之量即等小千，故生梵世得遊千界，可知。

Regarding the Commentary's 'Next, in the analogy, the wheel-turning king analogizes the seventh ground, relinquishing the path of effort according to one's portion': this briefly presents the essentials; this is the meaning of purity of practice, distinguished from the purity of karmic retribution obtained by a Brahmā king. However, according to the application [of the analogy], the two analogies each have five clauses, as will be known below. As for saying that the Brahmā king travels across a thousand realms, this means one thousand sets of four continents. According to the Abhidharmakośa-bhāṣya, the measure of the Second Dhyāna equals a small thousand worlds; the Third Dhyāna equals a medium thousand worlds; and the Fourth Dhyāna equals a great thousand worlds. The Mahāvibhāṣā has the view that the measure of the First Dhyāna itself equals a small thousand worlds; thus, being born in the Brahmā realm, he can travel across a thousand worlds, which can be understood.